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Entropy of relativistic Boltzmann gas?

  1. Mar 3, 2007 #1
    1. The problem statement, all variables and given/known data

    I'm given a relativistic Boltzmann gas and told to find the entropy

    2. Relevant equations

    [tex]\epsilon = pc[/tex]
    p = 3d momentum
    c = speed of light

    3. The attempt at a solution

    I tried to start by finding the partition function, from which I can just take the derivative, but I don't know how I would sum the energies. Would I merely use p=hw/2*pi summed over all frequencies from 0 to infinity?
  2. jcsd
  3. Mar 5, 2007 #2


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    The treatment of a photon gas within quantum statistics is a classical subject of statistical physics texts. So open a book...
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